Senna splendida (Vogel 1837: 17) H.S. Irwin & Barneby (1982: 190)

Gomes, Aureliana Santos, Rodrigues, Erimágna De Morais, Moura, Débora Coelho, Melo, José Iranildo Miranda De, Ribeiro, Rayane De Tasso Moreira & Queiroz, Rubens Teixeira De, 2022, Fabaceae Lindl. in a Conservation Unit in the Semi-Arid Region of Paraíba, Brazil, Phytotaxa 555 (1), pp. 17-41 : 36

35. Senna splendida (Vogel 1837: 17) H.S. Irwin & Barneby (1982: 190)

Shrubs scandent, branches glabrous, inermous. Nectary petiolar, stipitate. Stipules lateral, oblanceolate. Leaves paripinnate, 4–foliolate, leaflets opposite, lanceolate, venation brochidodromous, translucid punctuation absent. Inflorescence raceme, axillary, terminal. Flowers pedicillate, zygomorphic, diplostemonous; calyx dialysepalous, sepals 5, corolla dialypetalous, yellow, petals 5; androecium dialystaminous, heterodinamous, anthers poricidal; ovary superior, stipitate, pluriovulate. Fruit berry, stipitate, linear, cylindric, margin straight, epicarp tomentulose, black. Seeds obovate, plane, coat black, hilum basal.

Examined material:— BRAZIL. Paraíba: Maturéia, Pico do Jabre , 1.000 m elev., 05 October 2018, fl., Aureliana Gomes 3041 ( HACAM) .

Distribution and ecology: — The species occurs in eastern Brazil, associated with the Caatinga, Cerrado and Atlantic Rainforest domains on the edges of humid forest and in coastal areas (Queiroz 2009). In the study area, it was collected at 1,000 m.

Phenology:— Registered with flowers in October.

Taxonomic discussion:— Senna splendida can be recognized, mainly, by the shrubby habit, glabrous branches, oblanceolate stipules, pedicellate flowers and yellow corolla. It is distinguished from other similar species in the studied area with 4–foliolate leaves by the oblanceolate stipule and by the glabrous branches and leaves.